Measurements of Ay(θ) for C12(n,n)C12 from En=2.2 to 8.5 MeV

The analyzing power A(y)(theta) for neutron elastic scattering from C-12 has been measured for 33 neutron energies between E-n=2.2 and 8.5 MeV in the angular range from 25(degrees) to 145(degrees) in the laboratory system. The primary motivation for these measurements is the need for an accurate knowledge of A(y)(theta) for C-12(n,n)C-12 elastic scattering to enable corrections to high-precision neutron-proton and neutron-deuteron A(y)(theta) data in the neutron-energy range below E-n=30 MeV. In their own right, C-12(n,n)C-12 A(y)(theta) data are of crucial importance for improving both the parametrization of n-C-12 scattering and our knowledge of the level scheme of C-13. The present A(y)(theta) data are compared with published data and previous phase-shift-analysis results.